S-Cam or GE40
 

I'm building a 2.7 HC right now, and I've gotten conflicting opinions on cam selection. Should I go with the old stand-by S-cams or go with GE40s?

The engine will be a 2.7 9.8:1, w/ Webbers and early sports exhaust. The car is street legal, but mostly used for Non-competitive track events. There are no smog or safety inspections in Florida, and 93 octane, and even race gas is available at the pumps here. Any opinions would be appreciated.

Have or will you port the heads?

No, I'm leaving them at 35mm. This is close enough to RS specs not to bother (36/35mm).

OK; at 36 mm's the factory RS was slightly port constricted, which is why the torque curve more resembed an engine with an E cam rather then the S that it really had. So your engine with...

S Cam: Similar to an RS, but with slightly less top end, but just as good as an RS below 6000 RPM. So 195-200 HP on carbs.

E Cam: Better then an S cam below 4000 RPM, not quite as strong as the S above 4000 RPM but I doubt that you'll notice.

GE40: About half way between the E and the S.

It sounds like a GE40 might be a good fit.