last year I cooked my engine so I pulled it out and took to my neighbours machine shop. The 352 checked good so got it bored to 390 bore and stuffed in 390 crank, rods and new pistons.. Got the engine balanced and blueprinted, my heads checked over (6 bent valves) put my solid cam back in. Picked it up last weekend, painted and assembled. and stuck it in the car.. Went for a few test drives so far and the efi is learning good after I had to reset everything being a totally different animal.. All I can say now is it is so fun to drive and pretty scarey compared to the last engine that was in (but it was a totally stock 1960 352 that I stuck on bigger heads and a solid cam not really meant for a 352