a little update...decided to let go the Nitrous and rebuild the 2. 331 I have, for NA....Nitrous here in Costa Rica is a pain..costs me over 200$ to fill the 2 Bottles and I have to drive like 370 km to go and fill ...costs are too high..will also go back to Drag Radials MT ET Street SS ..so I can use just one set of Tires and dont have to change all the time..my new engine is almost ready, next week I get the pushrods and a ARP oil pump drive shaft, also the "cheap" chinese alu roller rockers will be changed for some CompCam SSteel..I m using an F cam with ported AluHeads ..I think it will make some good power ...