1970 Plymouth Barracuda Gran Coupe:Believe it left the factory with a 2806030 - 1961-1974, 318 LA-series small-block2466090 - 318 LA-series small-block2468230 - 318 A-series small-block2532630 - 318 A-series small-block2536030 - 1967-75, 318 LA-series small-block?????Now... via Carseva