i just wanted to see if anyone could give me a rough idea on how much power i will be getting from my 460. Parts and things ive done so far:
*Weiand stelth inlet manifold
*Comp cams XE274H cam
*Tri Y headers (i know not the best option but @ the collector i have it flared and 3in flanges fitted, plus they cost me nothing!)
*Dual 3in exhaust with hooker mufflers ending at the diff
*2in super sucker carby spacer
*C6 auto with shift kit
*9in with (so im told) 3:25.1 gears
*doing general portwork to the heads, mainly exhaust work and just a light tidy inside the inlets
*MSD in 6AL with MSD dizzy and 50000volt coil
With that cam and roller rockers, you will need special length pushrods anyway. Also the D3VE heads require a special pedestal mount roller rocker available from Harland Sharp and Ford Racing only, so be sure to get the correct type (unless you are converting your D3VE heads to stud rockers).
Your heads are 95-97 ccs. Shave them to 90 cc's and zero-deck your block to the flat top pistons, and you will get 10:1 c/r.
the roller rockers i have are stud type and came in a kit thats readily available here. they are 1.73 ratio.
I will get the block and heads shaved and hope that being 10:1cr on our premium unleaded fuel here (98 octane usually, places like sydney etc have a 100octane available!) so hoping no pinging or detonation wil occur