New Heads for the 406
I just bought a set of pro topline 220's (I know I know) and they we such a good deal I could not pass them up. The heads showed up on fri. and I have to say I was impressed as all the stuff I have read was kind of poor about the old CO. before RHS bought them.
Killed thick decks, bronze guides, 72cc chambers and all the machine work was exelent on this pair.
My question is that what do all you pro racers think the 406 will do with these new heads.
I will loose a touch compression with these heads but not too bad. The car ran 10's N/A with the old brodix and the same with ported dart 200's so it was kind of a trade off.
I have a new intake that will match nicely to these heads and 3 or 4 new carbs of different flavors.
.030 400 12.1 trw's
750 holley dp
Super Victor intake.
crane 625 lift solid roller cam with 260 and 270 degree duration on a 106 lc
Next 406 will have these heads with a whole lot of spray.
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