hi Dan Rodger dd .do you you can help? 1963 v 200 Valiant 170 c.i. automatic ,Holley 1920r carb. some times bogs at take off. tried = rebuild carb .added pertronix ignition,new cam ,timing chain and gears,new valves,guides,seats,played with timing, pulled distributor ,tried all the adjustments under and in side,it has plenty of power idles smooth with an occasional pop.i turned idle up it acts better but not right .i have a shop Manual.exhaust riser tied open c.c. position.tried c.w. position didnt help. coil, fuel pump/tank,lines, i think the carb .is it but havent found replacement