Help car drops 700 rpm when going from neutral to first gear

[ollucky]

Originally Posted by 1320racer

with his big cam and tight converter, i would bet he will need to drill the throttle blades if not already done.

Throttle blades are drilled

[SSDart]

Originally Posted by ollucky

Throttle blades are drilled

All four? How big are the holes? If the holes are too big they can create issues also

[1320racer]

get the carb off yet?

[ollucky]

Please Call Me 210 533 8058 Raul

[ollucky]

Originally Posted by SSDart

All four? How big are the holes? If the holes are too big they can create issues also

.165 bore have use this carburetor for years and have never had this problem.

[HandOverFist]

Originally Posted by ollucky

.165 bore have use this carburetor for years and have never had this problem.

There is the key. What has been done/changed since the last time it ran properly? You stated this is a new combination...did you by any chance add/change any timing related or ignition components?

[1320racer]

Raul, making any headway?

[ollucky]

Originally Posted by 1320racer

Raul, making any headway?

1320 Racer ... Please send me your number and I'll call you. thanks
Raul

[ollucky]

Originally Posted by HandOverFist

There is the key. What has been done/changed since the last time it ran properly? You stated this is a new combination...did you by any chance add/change any timing related or ignition components?

Just engine combo long block? Went from a 355 to a 406. Same Heads Intake and Carb for the last 15 years.

[HandOverFist]

Originally Posted by ollucky

Just engine combo long block? Went from a 355 to a 406. Same Heads Intake and Carb for the last 15 years.

My point was carb's don't just go bad/quit working overnight. Unless it has sit idle for a very long time with old fuel I would tend to look elsewhere first. Someone suggested earlier trying another carb for effect...way less time consuming and a quick way to eliminate one potential area.