Thread: Return of a GTP

Not sure how... the engine has lasted over 500 miles. Last Saturday cruised through the Sierra gold country (300miles) just seeing how the car performs. Very impressed by it's road manners. Very stable at high speeds. MPG 22 and increasing. Engine mods are SD headers, VS cam, #90 valve springs, zzp valve retainers, comp pushrods, rollmaster timing assembly, zzp high pressure oil relief, L32 GM connecting rods, KB hyper. pistons, Hasting rings, timing cover, arp cylinder head studs, arp main cap studs, arp rocker arm bolts, arp flex plate bolts, replaced all rubber coolant hoses, elbows, waterpump, refilled with ethylene glycol .Machine work, block decked, bored, mains line honed, rotating assembly balanced, cylinder heads.