07-16-2015, 01:14 AM
few thoughts, roller motors are good...but they wont have the fuel lobe on the cam for a manual fuel pump. i would check compression on your block...if its all good, give it a intake and good carb and headers...should wake it right up...along with a good ignition. my 306 put down about 225hp/275tq at the rear tires on the dyno. i was hoping for more(previous owner swore it was a 400hp motor at the crank)...more like 300! and with the efi...i get 14.5 on the hwy and 11.5-12 in town. but that nv3550 helps alot!
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.