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sr71mopar said
My guess is 550 hp and a whole lot of tq.

nope

Fst73_360 said
530-550hp and 570-590tq

nope

64physhy said
About 490-500 HP and probably around 550 lb/ft with the 950 HP

nope

MRL Performance said
If there is nothing done to the heads an are "stock" as you say, Im guessing 485-500HP 520-530TQ.
Big gains with ported heads big carb. I built a 416 a few years ago with that cam/head and SV intake 950 carb, it made 575hp 550tq.

nope

Woodie said
What cylinder pressure do you expect with this combo? I am running the XR286R as well and it runs very strong.

Also, thank you for the fantastic thread!

I had it warm and tested the compression and got 150 psi - I thought it would be higher but will re-check with another gauge to be sure its accurate.

moper said
Stock heads? When do the Shay Dell ones go on? With stock RPMs I'm going to say 480/520

nope

any more guesses before i spill it?