My 2 cents worth
no synthetic until the rings have seated
nothing less than 1500 rpms for the first 10 min .... cams not the only thing in a motor that has to seat.
I think the two most important things for a new motor are don't get on the freeway and drive a constant speed for a long period ...vary your speed ... and DO NOT let it overheat when its brand new !
My first Hot Rod was started, ran at 1500 for about 15 or 20 min then I went out and ran the piss out of it for about 2 hours (teenager at the time no self control
) then drove it from east Texas to California the next morning ... then out ran most everything on the road out here for 5 years ... when i retired it, it was flawless inside.
406 cubic inches ... 3 two barrel holleys .... very reworked 427 medium riser heads ... 4:56's ....god i miss that car
