If someone with a desk top dyno program would be so kind as to run this combo,I'd appreciate it.

496,10:1,rect.port iron heads(2.25/1.88-minor port work),single plane intake,solid roller(.660/.660,287/295 adv.duration,256/264@.050),
850CFM carb,2" headers and 3" exhaust.

Thanks! smile.gif

you didnt say what bore, and i guessed 4.25 stroke and stand bore. yes i know that doesnt make 496 but dont feel like doing the math. best guess that the dyno says is 562hp @ 5500rpm 580lbs/ft @4500

I need the io ic eo ec but just setting up to the best guess I got. 590 ft lbs at 4500 and 562hp at 5500 and 500 ft lbs at 3k

Tell me the cam manufactor and model #

Not to steal the post but does someone have the files for factory oval port cc heads, or any factory BB factory heads?

Cam is a Lunati 502A4LUN (LSA110)

I'm not sure if I used the correct head profile but I got 525 HP @ 575 ftlbs. I had to guess some on the cam profile since I don't have a file for that cam.

To make it more accurate I need the BTDC, BBDC, ABDC,ATDC from your spec card.

Wow! I would have lost that bet.Was thinking around 600 to 625. Oh well,Thanks guys! smile.gif

Can't read it to good but here goes:
ATDC 10, BTDC 24,BBDC 68,ABDC 52

I say 625 BHP MINIMUM at 6400. Good torque from 3000 to 6800-7000.
Make sure you have an adequate fuel supply, at least 2 Holley 110s and dual regulators, or else one of the newer 250-gph pumps and matching regulator.
My 290/300R10 with .630 valve lift has made 610 at 6400 on Jack Merkel's dyno, also 2 others. The 287/295 is a more aggressive cam, with more BHP, plus 28 more CID.
625 easy......

UDHarold

BTW, use these numbers in Desktop Dyne.....
IVO 38 BTDC IVC 72 ABDC EVO 83 BBDC EVC 37 ATDC..