I have a 400 sbc in a 78 malibu classic. Trying to install Hedman #68310 long tubes. Am having fits getting starter back on. Inst. sheet says starter will slip on with header in position, can't make it happen. I get header in and start to work starter up but can not clear tail of starter to fit into bell housing, hits pipes. Called Hedman, tech was befuddled. Said they had have had no issues with those headers in my car/engine. Anybody had experience with this install? Any suggestions appreciated, I'm really stuck.