Update, hey all I thought I would get a engineer around to check it over before I went for road worthy and mod plates. he was happy with all but needed foam on roll cage, ive now done, also needed a charcoal canister setup should arrive today I hope. But I dodged a bullet while under the car checking exhaust system noticed play in the tail shaft. the next day I pulled it out and found the u joint was wrecked all bearings were crushed and all shafts had been flattened this was from two engines ago I gave the 383 chev a run down the quarter mile before I pulled it out, guess the spicer u joints couldn't handel 550hp or at least I should have used a girdle in stead of retainers to spread the load better, anyway just about to put a new strange u joint and moroso girdle today and as I said dodged a bullet!!