Hmmm.. Engine must appear stock, no limit on cubic inches..... sounds like a 292 to me!!!!
There is one advantage to being the only car there with an I6. They don't have another to compare it to And you are right about a less powerful engine being a faster car sometimes. If you can't hook it up to the ground you aren't going anyplace.
Deck the block to the tops of flat top pistons and I'm sure you'll also need to take .060" off the head to straighten it out ;\) . I'd go for 1.94 / 1.50 valves if I could with a really good valve job. Your biggest obstacle seems to be with an intake manifold according to the rules. I'd try to have them allow the Offy 4 bl unit since they allow Edelbrocks for the V8's and Chevy never made a 4bbl manifold for the inlines.
A 3310 (750 cfm ) Holley on an 8 and you can't use a 4 bbl??? Pester the hell out of the tech committee until they allow you to run an out of the box 450 or 600 Holley with single pump an vac secondaries.
Run a coil in cap HEI with all the aftermarket goodies inside that are offered for the 8 cyl unit - it all fits and works. A lightweight flywheel and clutch combo will help it spin up a little quicker and drop off quicker as you back off for the corners.

With the right cam along with the rest of the combo I would gear the car for around 4500 at the end of the chutes as short and non existent as they might be. This would be within the capability of the non ported head.

One thing in your favor over the SBC is your engine is almost 100 lbs lighter. The down side of that is its length puts more of it over the front wheels. Chassis set up will be critical.

Overall you have an intersting concept Bubba and when you start killing off the V8 boys be prepared for all sorts of protests and accusations. I hope the track doesn't have a claimer rule.


Go get 'em Bubba!!!!

Mike


Mike G #4355