When I bought my 2nd '71 340 Cuda street car, that had the correct stock 340 10.5, 2.02/1.60 headed engine, it had a .484/284 purple hyd cam in it, small hdrs, a dual pane, a 750DP, 3.55 gears and at the track it ran 13.3's@101mph on slicks which = 301hp at the flywheel, on the street it was fast, the fact that you've probably got the 1.88/1.60 valves will not make much difference, you'll love it:thumbsup: