OK guys I'm about done with this thing. I bought this 88 ram 50 2.6 a/t 2wd a few months ago with a timing chain rattle on decel. Turned out to be a broken guide on the auxiliary chain so put in an eliminator kit, rattle fixed. My main issue is when I put it in gear( rev or drive) and try to accelerate it will not rev at all just this grand sucking sound. So far what I've done is this: new main timing chain set, different distributor, hotter coil and 8mm wires, egr delete, new intake gasket, rebuilt and installed weber 32/36 dgav, carter p4070 pump and a regulator(4psi @carb) also 2 sets of plugs and made sure ign timing was at 10deg advanced. Also compression test all 4 cyl at 130 psi. The weber I took off was a new age one that just dumped fuel on the primary main circuit. Not sure about that one yet. Also I checked my lash at the jet valves and they were at .010 on spec. What am I missing here. Best I can tell the head hasn't been surfaced but did note some welding on the rail right above the intake where the valve cover gasket seals. Maybe a internal vacuum leak between intake runners? I'm at a loss. I've had some serious battles with automobiles in the past but not like this. Any input would be greatly appreciated.