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Have you ever spoken to the folks at Klotz? http://www.klotzlube.com/

I'm sure, in the end, it will depend on the belt, but I can tell you we've got a combination that may be helpful for comparison purposes. It is, however OHV and 2 valves per cylinder. Still the valve springs are 300lb on the seat and 875lb open at .754" I'm assuming your 260 on the seat and...

How many cylinders and are those open or seat numbers?

LOL! You are welcome Larry! I need to clarify though. I've sold those heads to a fellow racer (Larry Palmer) for his R/S car. I think I can geta pic of it: http://www.mdstreetracingassoc.com/ http://www.mdstreetracingassoc.com/rules.html It's the blue Mustang. He had a problem at Cecil...

Interesting. Thanks. So the helical cut will tend to undo he things I am worried about in a gear set?...hmmm...I still think a gear set upsets the valve train when an idler is used.

Larry, I've got a new toy, but it's the same vintage! take a look at the "old" Mustang! http://mysite.verizon.net/vze7umdz/ The header situation is a bit frustrating, but I guess everyone is in the same boat? I've got to thank you for the help you've given me. The C3H heads you cleaned up...

Thanks MB. I didn't wat to intrude, but the topic is timely. SSO is for Super Street Outlaw. I also support a Real Street car (R/S).

Thanks Larry. I didn't think there was an easy way out. I'll ask one more question then leave MBs thread alone. Would it make any sense at all to try to build step headers with the "un-equal" length primaries. If so, would it make more sense to tune each step of each pipe with regards it's...

I don't know. You better keep an eye on what the MaxRaceSoftware guy has to say! Larry and MB, do you mind if I ask another header related question here? The 4 2 1 configuration has me pondering the "un-equal" length headers I need to run in SSO combinations.

Is there a variation for a "gasoline" buring engine? Does the text fully explain the constants?

I wouldn't argue gear or chain for OHC applications. That seems to be a pendulum that swings back and forth over the years. Also, as facinated as I am with muliti valve DOHC combinations, I really don't spend time in that arena, other than visiting a friends shop that specializes in Bike and...

Well, I guess we all agree about belts. But, I guess we've had some different experiences with gear sets. My own personnal experience: I will only try another gear set in an OHV pushrod engine, IF and only IF it is without idlers and has a built in dampening system. The gear sets I looked at...

RoverV8, I missed the question earlier re. steel cam core. Yes, I run a special billet steel core. This is a different core than a standard solid roller core. Shaun's Co has direct sources for these cores.

Good point(s) Shaun. The cylinder walls should be prepped very "softly". They should look like they were honed with steel wool. As for oil control. I run .005" under on 3mm low tension sets. No problem. Don't think I'll go without though. My next NA engine I am considering...

Roverv8, different diameters and widths are available. It is VERY important to make sure that block will accommodate. I was a teenager the last time I saw the Buick version of that block. I don't know if it had enough meat to support those bearings...I'm sure it has been improved with time.

Please don't run a gear set. They give more friction and scattered timing. If you can get a belt set I'd recommend that. A good chain will work just fine.

I refuse to run anything but roller cam bearings with my race roller cams. I made the switch 7 ~ 8 years ago, when the more agressive profiles I began running resulted in a curious wear problem with the "flat" babbit bearings I had been running. The problem even sent us home 2 days...

Shaun, I hate coming across like a testimonial, but I guess I have to. For those that don't know, I run Ultradyne rollers. Although not big block Pro Stock engines, they are very potent N/A and Nitrous small block engines capable of comfortable 7 second 1/4 mile ETs. A recent combination...

Shaun, The last time I was invloved with a hyd cam, we ran 0 pre-load/lash to avoid pump up on a dirt track car running in a hyd class (mid 80s). It seemed to work pretty well with the lifter being "maxed out" at all times. Would the rev-kit still apply in that situation?

Bryan, Thank you for the feedback. A lot of my recent projects have been large displacement small block V8s with a lot of nitous oxide. I was concerned that a rapid tempurature rise in one or many cylinders might cause detonation. I think your experience puts my worries to rest. From time...