Progress Update and two questions.... Options

[quadracerx]

I began trying to diagnose a part throttle miss....idles great...takes throttle great....hold throttle at almost any RPM and it misses.....seems to not miss as bad at higher RPM....its carbed... (IMG:style_emoticons/default/WTF.gif)

Checked the folowing:

Timing
Fuel pressure...

Started to mess with the what I like to call "mixture thumbscrews" until the miss got a bit better but still not gone....A friend told me to try pouring some "Seafoam" in with the gas on the next fill up....AND although Im not a big "magic elixer" will fix it guy.... Everyone I asked said this Seafoam stuff worked for them (4 people out of 4 gave good reviews) and so....I poured a bottle of this stuff in....and WHAM...miss is almost completely gone.....and improving seemingly the more I drive it (IMG:style_emoticons/default/confused24.gif)

Hey...whatever works I guess..So now Im planning an hour long drive to and from Tacoma....in the near future....

Ok so now the two questions...

1) How do I identify what Webers I have?

2) Is the fuel expansion tank standard equiptment on all 914 that came with Fuel Injection? And do I need it when I go to a V8 on my other car?

Ok...guess that was really three questions.....

Thanks again for all your help..

Steve

[Van]

On my Weber IDFs, the model and size is stamped at the bottom on one of the flanges (where it bolts to the intake manifold).

The carb tech articles here: http://www.aircooled.net/gnrlsite/resource/articles.htm might help you understand how different jets/components of the carbs affect different RPM ranges...