I like to keep the thrust clearance on the race car to around .005-.010" with the standard thrust plate and .003-.005 with the needle roller thrust plate...
You could likely run it out to around .015" with no adverse effects but if you have too much thrust clearance, it can damage your timing set and cause an erratic distributor....
If should be no problem to shave some material off the timing spacer or bottom of the cam sprocket, depending on type....some aluminum oxide cloth on a surface plate or cold rolled steel plate should do the trick if you don't have a lathe...
Pat
http://www.jps.net/binay/webdocs/strtmstng002_sml.JPG
You could likely run it out to around .015" with no adverse effects but if you have too much thrust clearance, it can damage your timing set and cause an erratic distributor....
If should be no problem to shave some material off the timing spacer or bottom of the cam sprocket, depending on type....some aluminum oxide cloth on a surface plate or cold rolled steel plate should do the trick if you don't have a lathe...
Pat
http://www.jps.net/binay/webdocs/strtmstng002_sml.JPG