Originally Posted by fast68plymouth
Are the engine build specs/details available?
CR, heads, intake, carb, header size, cam, etc?

See if the combo makes sense that it “should” be making 850hp.


I picked up the build sheet from the engine builder. It doesn't have all the specs but it fills in a few blanks. Dart aluminum block, Dart Pro 1 heads CNC, 4.500 x 4.250, Manley 697800 pistons (should be 13:1 compression) Comp 1302B/4247B 112 solid roller with 4/7 swap. Dart intake,1250 Dominator carb. T&D 1.70 rocker arms. Peterson 5 stage dry sump. Engine builder said it made 880 hp on the dyno with a wet sump then they changed to a dry sump and it wasn't put back on dyno but he assumes it makes roughly the same.

Cam is a 4/7 swap so I want to confirm that the spark plugs wires are correct. Easy mistake to make that costs a bunch of power.