The 210's without question, especially the competition package because of better exhaust port flow. Head flow is just as important on a boosted engine as it is on a naturally aspirated engine. Buy as much head as you can afford because a good head will make as much power with less boost as a poor head will make with more boost, and making the same amount of power with less boost is always better (cooler charge air temps, less power to drive the supercharger, etc.)
I would also recommend inconel exhaust valves and thermal coating the combustion chambers and valves.
The raised valve cover rails and raised exhaust ports shouldn't pose any problem, but as with anything you never know until you put it together and try it...
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1969 Chevelle
Old setup: Procharged/intercooled/EFI 353 SBC, TKO, ATS/SPC/Global West suspension, C6 brakes & hydroboost.
In progress: LS2, 3.0 Whipple, T56 Magnum, torque arm & watts link, Wilwood Aero6/4 brakes, Mk60 ABS, Vaporworx, floater 9" rear, etc.
Last edited by Blown353; 02-07-2007 at 02:01 PM.
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