Trying to get ahead of emissions next year

[F4U-1A]

Yeah, my bad - of course I meant NOx - I really did! Thanks for that...

Old age, I forgot my dual Cats are on the passenger side. All Good

 

[L31MaxExpress]

Magnaflow 51647 is what I ended up putting on a 1984 Elcamino I was working on. Used 2.25" log manifolds from a 1992ish TBI G20 van. Muffler shop expanded the inlets on the cat to slip over 2.25" pipe. Single 3" outlet to a 3" Magnaflow 18" case round muffler. Dumped ahead of the rear axle. Car had a low mileage stock 1985 TPI 305 long block in it that I pulled the TPI off and put the stock aluminum 305 LG4 Q-Jet manifold on. The 85 LB9 shared the same long block as the 85 L69. TH350 and the stock 2.43 rear gear. Ran good and sounded great.