my current short block set up is a std stroke eagle crank, eagle H beams & .040 12.5 pop ups, with indy heads being 75ccs it should net around 12.8 to 1, Im wondering if unported indy -1s will be too big for this level of engine,


track duty only no street use in a 1/2 chassi'ed duster around 3000lb tops, transbraked glide with 4000 or 5000 converter (I have both) 31 or 32" tyre with 4.56s

Iv got some parts together to later on screw a source 543 together and only want to buy one set of heads.

heres an old picture of it