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Yes similar... his will have alot more compression (has a 16 degree angle milled W5 with pretty small chamber), & hair more camshaft.... Yours has more radical piston/bore combo, & too much intake manifold. Both getting dynoed, probably make similar power, but I'd expect the 416 to put up hair better # with the better head/compression & cam. I think his 416 is going to make way more power than he wants, so I'm having to decide if I want to de-tune it a bit with cam.



Yeah - I only need my car to go mid to high 10's at 3000 DA to be faster than most of the guys I bracket race against. I'm tired of being chased down instead of chasing others down. The car weighs 3264 with me and gas in it... but that's with the iron head 340 and stock radiator. I'm sure the aluminum W5 heads and aluminum radiator is going to lighten up the front end a bit.

I also don't want to be one of the guys pouring money into new springs and lifters every season (or after every few races even!). A less aggressive cam means less open spring pressure means it's easier on my wallet. Also less Torque / HP means fewer parts breaking! :-)

Marvin Herbold 1973 Plymouth Duster 340 Drag Car Blog - http://www.HerboldRacing.com Videos - http://www.YouTube.com/mherbold Pictures - http://gallery.herbold-family.com/main.php?g2_itemId=10331