Thanks for the responses, first, it's a C4 that I used for several seasons with a stock bore & stroke 5.o, then a 347. it has the HD internals, red clutches and band, billet servo and a Broader Performance trans brake VB. The converter stall with the 347 was 3800, has anti-balloon plates. the car now is getting a BBF and I need to have a knowledgeable trans guy set up the converter to bolt to the BBF flywheel and some advice on converter stall with the new setup. I'll give Mike a call, Thanks again!