Lupo did my 8" vert for my small block deal. Hit my 5400 stall target dead nuts. worked real nice on the street as well. Sent it to Lenny to refreshen and it never left my garage as the engine broke a pushrod and things went south from there, so cant give advise about Lenny. It will be going back to Lenny soon to get set up for my 511 deal if I can still use it in the new combo. Never had much luck with PTC. Fisrt one went back with metal shavings in it. They could never get the stall I asked for correct.